What is fermentation, Biology

Assignment Help:

What is Fermentation ?

Fermentation is a process used by anaerobic organisms and certain cells of aerobic organisms, such as muscle cells deprived of oxygen, to obtain additional energy from the glycolytic pathway. In other words, if there is no oxygen to accept electrons at the end of the electron transport system, all of the NAD available will be bound in reduced form, and cells must turn to glycolysis to supply ATP. As you have learned, glycolysis requires NAD+, in order to oxidize (remove electrons from) G3P to form 3PG. Oxidizing G3P forms NADH + H+. NAD+ must then be regenerated to allow glycolysis to continue.

In one type of fermentation, NADH + H+ reduce pyruvate to form either lactic acid or ethanol, depending upon the organism, plus NAD+. This regenerates NAD+, allowing glycolysis to continue. Lactic acid is the end point in overused muscle tissue; ethanol (ethyl alcohol) during fermentation of beer or wine. The reactions are as follows:

Pyruvate +  NADH + H+→lactic acid + NAD+

or

Pyruvate + NADH + H+→ ethanol + CO2 + NAD+

 

 


Related Discussions:- What is fermentation

Pericarditis , Pericarditis Pericarditis is a syndrome caused by infl...

Pericarditis Pericarditis is a syndrome caused by inflammation of the pericardium. Causes i) Infections Bacterial : Pneumococci, Staphylococci, Streptococci,

What is connective tissue proper, What is connective tissue proper? The...

What is connective tissue proper? The name connective tissue proper is used to assign the connective tissue that fills interstitial spaces as opposed to the specialized connect

Which are the living beings that carry out photosynthesis, Which are the li...

Which are the living beings that carry out photosynthesis? Which is the cell organelle responsible for the absorption of light for the photosynthesis process in plants and algae?

What is the autotrophic hypothesis on the origin of life, What is the autot...

What is the autotrophic hypothesis on the origin of life? The autotrophic hypothesis on the origin of life asserts that the first living beings on earth were producers of thei

#title.respiratio., i want notes for respiration in humans full qand to the...

i want notes for respiration in humans full qand to the point si i can learn them

Exercise and medications in bronchial asthma, Exercise Stress or em...

Exercise Stress or emotional upset  Medications Aspirin, non-steroidal anti-inflammatory drugs(NSAIDs), beta- blockers(including eye drops), cholinergic dr

Define osseointegration from diffrent points of view, Q. Define Osseointegr...

Q. Define Osseointegration from patients, microscopic and biomechanical points of view. a) From the view of the patient . An implant fixture is osseointegrated if it provid

Explain what is fungi, Explain what is Fungi? The fungi are spore-beari...

Explain what is Fungi? The fungi are spore-bearing eukaryotic organisms without chlorophyll and having absorptive nutrition. These reproduce sexually as well asexually. Primari

Ovary is half-inferior in which flower, Ovary is half-inferior in the flowe...

Ovary is half-inferior in the flowers of : 1. Guava 2. Plum 3. Brinjal 4. Cucumber Plum is the flower in which ovary is half - inferior

Life forms, why are life forms significant?

why are life forms significant?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd